Revolutions by Mike Duncan. You can start with the Haitian and the Mexican revolutions. Then just listen to whichever season you want.
Dan Carlin's Hardcore History.
The History of Rome by Mike Duncan.
These are absolutely amazing.
Honorable mentions for Behind the Bastards and Lions Lead by Donkeys, if you like some banter along with the story telling.
Edit: someone in here reminded me about Your Undivided Attention. It is, literally and without irony, the most important podcast you could ever listen.
Behind the Bastards is my top recommendation. Just learning how truly awful the world has been for a few thousand years is soul crushingly entertaining.
I love how they combine it all with light banter. Without the banter, most of the episode would be unlistenable, as you would be too depressed and tie yourself on a train track.
I also love that Robert brings on repeat guests for certain topics. If an episode has lots of dead babies, it gets one person, Nazis often get Matt Lieb with his new sound board.
My favorite episode of all time is Action Park, with Garrison as host and Robert as the “guest”.
Carlin's podcast (and a lot of popular history podcasts) are generally considered fairly poor by academic historians, in regard to accurately portraying modern historical research. I think those kinds of podcasts are good to engage and stimulate interest in history, as long as the listener understands that they are a kind of "pop" history and should be taken with a grain of salt.
Same goes for a lot of popular books, like Sapiens.